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Finding the Fourth Proportional to 117,435.25, 162,060.65 and 67,134.25

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Solution

The fourth proportional to 117,435.25, 162,060.65 and 67,134.25 is: 92,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,435.25 : 162,060.65 = 67,134.25 : x
  2. Step 2: Convert to fraction form
    117,435.25/162,060.65 = 67,134.25/x
  3. Step 3: Cross multiply
    117,435.25x = 162,060.65 × 67,134.25
  4. Step 4: Simplify right side
    117,435.25x = 10,879,820,192.26
  5. Step 5: Solve for x
    x = 10,879,820,192.26/117,435.25
  6. Step 6: Final answer
    x = 92,645.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.